Nissan Sentra Service Manual: Engine control system
- Precaution
- Preparation
- System description
- System
- Operation
- Ecu diagnosis information
- Wiring diagram
- Basic inspection
- Dtc/circuit diagnosis
- Symptom diagnosis
- Periodic maintenance
- Removal and installation
- Service data and specifications (SDS)
Service data and specifications
(sds)
Periodical Maintenance Specification
ENGINE COOLANT CAPACITY (APPROXIMATE)
Radiator
Thermostat
Water Control Valve
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Precaution
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Other materials:
P0420 Three way catalyst function
DTC Logic
DTC DETECTION LOGIC
The ECM monitors the switching frequency ratio of air fuel ratio (A/F)
sensor 1 and heated oxygen sensor 2.
A three way catalyst (manifold) with high oxygen storage capacity
will indicate a low switching frequency of heated oxygen sensor 2.
As oxygen storage c ...
Periodic maintenance
M/T OIL
Inspection
OIL LEAKAGE
Make sure that gear oil is not leaking from transaxle or around it.
OIL LEVEL
Remove filler plug (1) and gasket from transaxle case.
Check the oil level from filler plug mounting hole as shown.
CAUTION:
Do not start engine while checking oil level.
Se ...
On board diagnostic (OBD) system
Diagnosis Description
This system is an on board diagnostic system that records exhaust
emission-related diagnostic information
and detects a sensors/actuator-related malfunction. A malfunction is indicated
by the malfunction indicator
lamp (MIL) and stored in ECU memory as a DTC. The diagnos ...
